01 -
Preheat oven to 325°F (163°C). Thoroughly grease a 9-inch springform pan, covering bottom and sides. Optionally line the bottom with parchment paper for easier removal.
02 -
Combine graham cracker crumbs, melted butter, granulated sugar, and cinnamon in a medium bowl until evenly moistened. Press firmly into the bottom and about 1 inch up the sides of the prepared pan. Use a measuring cup to compact evenly. Bake 8-10 minutes until lightly golden, then cool completely.
03 -
Beat softened cream cheese with an electric mixer on medium speed until smooth and creamy (2-3 minutes). Add granulated sugar and beat until well combined and fluffy. Incorporate sour cream, vanilla extract, and cinnamon. Add eggs one at a time on low speed, mixing just until incorporated. Avoid overmixing after adding eggs.
04 -
Pour the cheesecake filling over the cooled crust, spreading evenly with a spatula.
05 -
Mix melted butter, brown sugar, and cinnamon in a small bowl until smooth. Transfer to a piping bag or ziplock bag with corner snipped. Pipe in a spiral pattern on top of the filling, starting from center and working outward. Use a skewer or knife to gently drag through the spiral for a marbled effect.
06 -
Bake in preheated oven for 55-65 minutes until edges are set but center still has slight jiggle. Turn off oven, crack door slightly, and let cool gradually in the oven for 1 hour.
07 -
Remove from oven and run a knife around the edge to loosen from sides. Cool completely at room temperature, then cover and refrigerate at least 4 hours or overnight to fully set.
08 -
Whisk powdered sugar, milk, and vanilla extract in a small bowl until smooth, adjusting consistency as needed. Drizzle over the chilled cheesecake in a decorative pattern.
09 -
Remove sides of springform pan. For clean slices, dip a sharp knife in hot water, wipe dry, then slice. Repeat for each cut. Serve chilled.